Phyllosilicate minerals are structured from which two types of sheets?

Show Answers

Sheet of tetrahedronsThree-layered octahedral sheetSheet of octahedronsA combination of tetrahedral and octahedral sheets

Explanation

Phyllosilicates consist of layers formed by two main types of sheets: tetrahedral sheets made of silicon-oxygen tetrahedra and octahedral sheets composed of metal-oxygen octahedra. Therefore, the correct answer is the combination of both tetrahedral and octahedral sheets.